Closed forging stepping beam oil nozzle mold

Abstract

The utility model relates to the technical field of workpiece forging, in particular to a closed forging stepping beam oil nozzle die which comprises a die body, a nozzle body is movably installed in the die body, first positioning grooves are formed in the outer side of the bottom end of the die body in an annular array mode, and spring assemblies are installed in the first positioning grooves in an embedded mode. Oil spraying holes are formed in the top of the outer side of the nozzle body in an annular array mode, a positioning frame is installed at the bottom of the nozzle body in a threaded mode, second positioning grooves are formed in the outer side of the top of the positioning frame in an annular array mode, and the second positioning grooves and the bottom of the spring assembly are movably installed. The injection nozzle assembly has the advantages that the mold cavity is accurately cooled, and the mechanical failure of the injection nozzle assembly under a high-pressure load is effectively avoided; the problems that in the closed forging process, precise cooling is needed for thermal deformation of a mold cavity, and a traditional oil nozzle assembly integrated in the cavity frequently generates mechanical failure under the high-pressure load are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to work piece forging technical field, concretely is a closed forging step -by -step beam oil nozzle mould. BACKGROUND

[0002] In continuous operation, the contact part of the step -by -step beam and work piece can produce thermal deformation because of high temperature. The oil nozzle can spray cooling medium, help local cooling, maintain equipment structure stability, and can also lubricate the mould.

[0003] However, in the implementation process of the closed forging process, the step -by -step beam system has two key technical contradictions: first, the mould cavity produces thermal deformation under the action of continuous thermal load, and needs to be precisely cooled through the oil injection system; second, the work piece bears a high pressure load of 300-500MPa in the forging process, resulting in frequent mechanical failure of the traditional oil nozzle assembly integrated in the cavity. In view of this working condition conflict, a closed forging step -by -step beam oil nozzle mould is proposed to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model discloses a closed forging step -by -step beam oil nozzle mould, which has the advantages of precise cooling of the mould cavity and effective prevention of mechanical failure of the oil nozzle assembly under high pressure load, and solves the problem of precise cooling of the mould cavity thermal deformation and frequent mechanical failure of the traditional oil nozzle assembly integrated in the cavity under high pressure load in the closed forging process.

[0005] To achieve the above object, the utility model provides the following technical scheme: a closed forging step -by -step beam oil nozzle mould, comprising a mould body, a nozzle body movably installed in the mould body, a first positioning groove annularly arranged on the outer side of the bottom end of the mould body, and a spring assembly embedded in the first positioning groove.

[0006] The outer side top of the nozzle body is annularly provided with an oil injection hole, the bottom of the nozzle body is provided with a positioning frame, the outer side top of the positioning frame is annularly provided with a second positioning groove, and the second positioning groove is movably installed with the bottom of the spring assembly.

[0007] Preferably, the mould body top is provided with a shaping groove, and the bottom of the shaping groove is provided with a nozzle slot penetrating the mould body.

[0008] In the design, the shaping groove is arranged on the top of the mould body, and the nozzle slot penetrating the mould body is arranged at the bottom of the shaping groove, so as to provide the work piece with a forging shaping space and provide the nozzle body with an installation position.

[0009] Preferably, the size of the nozzle slot is matched with the size of the nozzle body, and the nozzle body is movably inserted with the mould body through the nozzle slot.

[0010] In the design, by matching the nozzle slot size with the nozzle body size, and the nozzle body is movably inserted through the nozzle slot and the mold body, the flexible installation of the nozzle body on the mold body and the subsequent maintenance and replacement are realized.

[0011] Preferably, the nozzle body is internally provided with a communication groove in communication with the oil injection hole, the outer wall of the nozzle body is provided with external thread at the bottom, and the top of the completely accommodated nozzle body is flush with the inner side bottom of the shaping groove.

[0012] In the design, by internally providing the nozzle body with a communication groove in communication with the oil injection hole, externally threading at the bottom of the nozzle body, and ensuring that the top of the completely accommodated nozzle body is flush with the inner side bottom of the shaping groove, the reasonable flow of the cooling medium in the nozzle body is realized, and the connection with the positioning frame and the effect of not being affected by the workpiece during forging are facilitated.

[0013] Preferably, the positioning frame is provided with an internal threaded hole at the top, the internal threaded hole penetrates the positioning frame, and a communication pipe in communication with the internal threaded hole is embedded and installed at the bottom of the positioning frame, and the communication pipe is communicated and installed with the nozzle body through the positioning frame.

[0014] In the design, by providing an internal threaded hole at the top of the positioning frame and penetrating the positioning frame, embedding and installing a communication pipe in communication with the internal threaded hole at the bottom of the positioning frame, and communicating and installing the communication pipe with the nozzle body through the positioning frame, the function of the cooling medium smoothly entering the nozzle body from the external supply pipeline through the communication pipe and the positioning frame is realized.

[0015] Preferably, the spring assembly includes a compression spring, and a cylinder is welded and installed at the upper and lower ends of the compression spring, respectively, the cylinder at the top of the compression spring is embedded and installed in the first positioning groove, and the cylinder at the bottom of the compression spring is movably inserted into the second positioning groove.

[0016] In the design, by setting the spring assembly to include a compression spring with a cylinder welded at the upper and lower ends, and embedding and installing the cylinder at the top of the compression spring in the first positioning groove and movably inserting the cylinder at the bottom of the compression spring into the second positioning groove, the function of being able to lift the nozzle body after forging is realized, and the oil injection cooling and lubrication of the mold body or the workpiece is realized.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] The utility model discloses a first positioning slot, spring assembly, positioning frame and second positioning slot are set, reaches the impact of spring assembly can buffer high -pressure load to nozzle body in the forging process, effectively avoids the effect that oil nozzle subassembly is under high -pressure load mechanical failure.

[0019] Meanwhile, through the spring assembly that sets up, can also lift the nozzle body after forging, thereby cooling the mould cavity to the nozzle body outside top annular array opening oil injection hole is accurate. ACCURACY

[0020] Figure 1 It is the front view structure schematic drawing of the utility model;

[0021] Figure 2 It is the mould body section structure schematic drawing of the utility model;

[0022] Figure 3 It is the nozzle body structure schematic drawing of the utility model;

[0023] Figure 4 It is the positioning frame structure schematic drawing of the utility model.

[0024] In the drawing: 1, mould body;11, shaping groove;12, nozzle slot;13, first positioning slot;2, nozzle body;21, oil injection hole;22, communication groove;23, outer thread;3, positioning frame;31, second positioning slot;32, internal thread hole;33, communication pipe;4, spring assembly. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0026] Embodiment one: as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The utility model provides an embodiment: a closed forging step -by -step beam oil nozzle mould, including mould body 1, the movable installation of mould body 1 has nozzle body 2, and the first positioning slot 13 is set up to the ring array outside the bottom end of mould body 1, and the first positioning slot 13 is embedded and installed with spring assembly 4;

[0027] The nozzle body 2 is provided with a plurality of oil injection holes 21 in an annular array on the top outer side, and the bottom of the nozzle body 2 is threadedly mounted with a positioning frame 3, and the top outer side of the positioning frame 3 is provided with a plurality of second positioning grooves 31 in an annular array, and the second positioning grooves 31 are movably mounted with the bottom of the spring assembly 4.

[0028] Specifically, by arranging the first positioning grooves 13 in an annular array on the bottom outer side of the mold body 1, the spring assembly 4 embedded in the first positioning grooves 13, the positioning frame 3 threadedly mounted on the bottom of the nozzle body 2, and the second positioning grooves 31 in an annular array on the top outer side of the positioning frame 3 movably mounted with the bottom of the spring assembly 4, the spring assembly 4 can buffer the impact of high-pressure load on the nozzle body 2 during forging, effectively avoiding mechanical failure of the oil injection nozzle assembly under high-pressure load.

[0029] At the same time, the spring assembly 4 can also lift the nozzle body 2 after forging, so as to precisely cool the mold cavity through the oil injection holes 21 in an annular array on the top outer side of the nozzle body 2.

[0030] Embodiment Two: In order to realize the functions of providing a forging shaping space for the workpiece and providing a mounting position for the nozzle body 2, as shown in Figure 1 , Figure 2 and Figure 3 , in this embodiment, the top of the mold body 1 is provided with a shaping groove 11, and the bottom of the shaping groove 11 is provided with a nozzle groove 12 penetrating through the mold body 1.

[0031] In the design, by arranging the shaping groove 11 on the top of the mold body 1 and the nozzle groove 12 penetrating through the mold body 1 at the bottom of the shaping groove 11, the functions of providing a forging shaping space for the workpiece and providing a mounting position for the nozzle body 2 are realized.

[0032] Further, the size of the nozzle groove 12 matches the size of the nozzle body 2, and the nozzle body 2 is movably inserted into the mold body 1 through the nozzle groove 12.

[0033] In the design, by matching the size of the nozzle groove 12 with the size of the nozzle body 2, and movably inserting the nozzle body 2 into the mold body 1 through the nozzle groove 12, the purpose of flexible installation of the nozzle body 2 on the mold body 1 and easy maintenance and replacement is achieved.

[0034] Further, the nozzle body 2 is internally provided with a communication groove 22 in communication with the oil injection hole 21, and the outer wall of the nozzle body 2 is provided with an external thread 23 at the bottom, and the top of the completely accommodated nozzle body 2 is flush with the bottom of the inner side of the shaping groove 11.

[0035] In the design, the communication groove 22 is arranged in the nozzle body 2 and communicated with the oil injection hole 21, the external thread 23 is arranged at the bottom of the outer wall of the nozzle body 2, and the top of the completely accommodated nozzle body 2 is flush with the inner bottom of the shaping groove 11, so that the cooling medium can flow in the nozzle body 2, and the positioning frame 3 is connected and is not affected by the workpiece during forging.

[0036] In order to realize the function that the cooling medium flows smoothly from the external supply pipeline into the nozzle body 2, as shown in Figure 1 、 Figure 3 and Figure 4 , in the embodiment, the inner threaded hole 32 is arranged at the top of the positioning frame 3 and penetrates the positioning frame 3, the communication pipe 33 communicated with the inner threaded hole 32 is embedded and arranged at the bottom of the positioning frame 3, and the communication pipe 33 is communicated and arranged with the nozzle body 2 through the positioning frame 3.

[0037] In the design, the inner threaded hole 32 is arranged at the top of the positioning frame 3 and penetrates the positioning frame 3, the communication pipe 33 communicated with the inner threaded hole 32 is embedded and arranged at the bottom of the positioning frame 3, and the communication pipe 33 is communicated and arranged with the nozzle body 2 through the positioning frame 3, so that the cooling medium can flow smoothly from the external supply pipeline into the nozzle body 2 through the communication pipe 33 and the positioning frame 3.

[0038] Further, the spring assembly 4 comprises a compression spring, and the upper and lower ends of the compression spring are respectively welded with a cylinder, the cylinder at the top of the compression spring is embedded and arranged in the first positioning groove 13, and the cylinder at the bottom of the compression spring is movably inserted into the second positioning groove 31.

[0039] In the design, the spring assembly 4 is arranged as a compression spring with a cylinder welded at the upper and lower ends, the cylinder at the top of the compression spring is embedded and arranged in the first positioning groove 13, and the cylinder at the bottom of the compression spring is movably inserted into the second positioning groove 31, so that the nozzle body 2 can be lifted after forging, and the oil injection cooling lubrication of the mold body 1 or the workpiece can be realized.

[0040] When the utility model is used, the spring assembly 4 is arranged on the mold body 1, and the specific operation is that the cylinder at the top of the spring assembly 4 is embedded into the first positioning groove 13 arranged in a ring array outside the bottom end of the mold body 1, so as to ensure stable installation.

[0041] The nozzle body 2 is inserted into the mold body 1, and the nozzle body 2 is movably inserted into the nozzle slot 12 at the top of the mold body 1, and the top of the completely accommodated nozzle body 2 is flush with the inside bottom of the shaping slot 11. The positioning frame 3 is installed on the nozzle body 2, and by rotating, the internal threaded hole 32 at the top of the positioning frame 3 is threadedly connected with the external screw thread 23 at the bottom of the nozzle body 2, so that the two are tightly fixed. The cylindrical bottom of the spring assembly 4 is movably inserted into the second positioning slot 31 arranged in a ring shape on the outside of the top of the positioning frame 3, and the assembly of the entire mold is completed.

[0042] The cooling medium supply pipe is connected to the communication pipe 33 embeddedly installed at the bottom of the positioning frame 3, and the connection is ensured to be tight and free of leakage risk, and it is ensured that the cooling medium can smoothly pass through the communication pipe 33, the internal threaded hole 32 in the positioning frame 3, and enter the communication slot 22 inside the nozzle body 2.

[0043] The workpiece to be forged is placed in the shaping slot 11 at the top of the mold body 1, and the closed forging process is started. After the workpiece is forged and taken out, the spring assembly 4 lifts the nozzle body 2, so that the mold body 1 or the workpiece taken out and located directly above the mold body 1 is sprayed through the oil injection hole 21.

[0044] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A closed forging step beam oil injection nozzle mold, comprising a mold body (1), a nozzle body (2) movably mounted in the mold body (1), characterized in that: The mold body (1) is provided with a first positioning groove (13) on the outer side of the bottom end in a ring array, and the first positioning groove (13) is embedded with a spring assembly (4); The nozzle body (2) is provided with an oil injection hole (21) on the outer side of the top in a ring array, and the nozzle body (2) is threadedly mounted with a positioning frame (3) at the bottom, the positioning frame (3) is provided with a second positioning groove (31) on the outer side of the top in a ring array, and the second positioning groove (31) is movably mounted with the bottom of the spring assembly (4).

2. A closed-die step-plate oil nozzle die according to claim 1, wherein The mold body (1) is provided with a shaping groove (11) at the top, and the shaping groove (11) is provided with a nozzle groove (12) penetrating the mold body (1) at the bottom.

3. A closed-die step-plate nozzle die according to claim 2, wherein, The size of the nozzle groove (12) matches the size of the nozzle body (2), and the nozzle body (2) is movably inserted with the mold body (1) through the nozzle groove (12).

4. A closed-die step-plate oil nozzle die according to claim 1, wherein The nozzle body (2) is provided with a communication groove (22) communicating with the oil injection hole (21) in the inside, and the nozzle body (2) is provided with an external thread (23) at the bottom of the outer wall, and the completely accommodated nozzle body (2) is flush with the inside bottom of the shaping groove (11) at the top.

5. A closed-die step-plate oil nozzle die according to claim 1, wherein, The positioning frame (3) is provided with an internal thread hole (32) at the top, the internal thread hole (32) penetrates the positioning frame (3), and the positioning frame (3) is embedded with a communication pipe (33) communicating with the internal thread hole (32) at the bottom, and the communication pipe (33) is communicated and mounted with the nozzle body (2) through the positioning frame (3).

6. A closed-die step-plate oil nozzle die according to claim 1, wherein, The spring assembly (4) comprises a compression spring, and a cylinder is welded and mounted at the upper and lower ends of the compression spring respectively, the cylinder at the top of the compression spring is embedded in the first positioning groove (13), and the cylinder at the bottom of the compression spring is movably inserted in the second positioning groove (31).

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